changelog: Improvements, remove redundant styling with style-guide, L…

[SammySteiner]

…G-5883

Why

Styles were added directly to the idp in the past for mfa-icons for expediency, but we're now ready to migrate them into the style-guide. Therefore, we're removing them from the idp as they will become redundant.

Relevant style-guide pull request: 18F/identity-design-system#309

[aduth]

We'll still need to update to a version of the identity-style-guide package that includes the changes from 18F/identity-design-system#309. Currently, these styles won't be applied.

[SammySteiner]

We'll still need to update to a version of the identity-style-guide package that includes the changes from 18F/identity-style-guide#309. Currently, these styles won't be applied.

Did I miss a step here or in the style-guide?

[aduth]

We'll still need to update to a version of the identity-style-guide package that includes the changes from 18F/identity-style-guide#309. Currently, these styles won't be applied.

Did I miss a step here or in the style-guide?

Both:

• We need to publish a new version of the identity-style-guide package
• We need to update this project to use that new version